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| 1 | Vortex genesis over the Bay of Bengal in spring and its role in the onset of the Asian Summer Monsoon显示文摘Physical processes associated with onset of the 1998 Asian summer monsoon were examined in detail using multi-source datasets. We demonstrated that strong ocean-atmosphere-land interaction in the northern Indian Ocean and tropical Asian area during spring is a fundamental factor that induces the genesis and development of a monsoon onset vortex over the Bay of Bengal (BOB), with the vortex in turn triggering onset of the Asian summer monsoon. In spring, strong surface sensible heating over India and the Indochina Peninsula is transferred to the atmosphere, forming prominent in situ cyclonic circulation, with anticyclonic circulations over the Arabian Sea and northern BOB where the ocean receives abundant solar radiation. The corresponding surface winds along the North Indian Ocean coastal areas cause the ocean to produce the in situ offshore currents and upwelling, resulting in sea surface temperature (SST) cooling. With precipitation on the Indochina Peninsula increasing from late April to early May, the offshore current disappears in the eastern BOB or develops into an onshore current, leading to SST increasing. A southwest-northeast oriented spring BOB warm pool with SST >31°C forms in a band from the southeastern Arabian Sea to the eastern BOB. In early May, the Somali cross-equatorial flow forms due to the meridional SST gradient between the two hemispheres, and surface sensible heat over the African land surface. The Somali flow overlaps in phase with the anticyclone over the northern Arabian Sea in the course of its inertial fluctuation along the equator. The convergent cold northerlies on the eastern side of the anticyclone cause the westerly in the inertial trough to increase rapidly, so that enhanced sensible heat is released from the sea surface into the atmosphere. The cyclonic vorticity forced by such sensible heating is superimposed on the inertial trough, leading to its further increase in vorticity strength. Since atmospheric inertial motion is destroyed, the flow deviates from the inertial track in an intensified cyclonic curvature, and then turns northward toward the warm pool in the northern BOB. It therefore converges with the easterly flow on the south side of the anticyclone over the northern BOB, forming a cyclonic circulation center east of Sri Lanka. Co-located with the cyclonic circulation is a generation of atmospheric potential energy, due to lower tropospheric heating by the warm ocean. Eventually the BOB monsoon onset vortex (MOV) is generated east of Sri Lanka. As the MOV migrates northward to the warm pool it develops quickly such that the zonal oriented subtropical high is split over the eastern BOB. Thus, the tropical southwesterly on the southern and eastern sides of the MOV merges into the subtropical westerly in the north, leading to active convection over the eastern BOB and western Indochina Peninsula and onset of the Asian summer monsoon. | WU GuoXiong GUAN Yue WANG TongMei LIU YiMin YAN JingHui MAO JiangYu | 2011 | Science China Earth Sciences2011,54,1: | 16 |
| 2 | Synergistic Effect of the Planetary-scale Disturbance, Typhoon and Meso-β-scale Convective Vortex on the Extremely Intense Rainstorm on 20 July 2021 in Zhengzhou显示文摘On 20 July 2021,northern Henan Province in China experienced catastrophic flooding as a result of an extremely intense rainstorm,with a record-breaking hourly rainfall of 201.9 mm during 0800–0900 UTC and daily accumulated rainfall in Zhengzhou City exceeding 600 mm(“Zhengzhou 7.20 rainstorm”for short).The multi-scale dynamical and thermodynamical mechanisms for this rainstorm are investigated based on station-observed and ERA-5 reanalysis datasets.The backward trajectory tracking shows that the warm,moist air from the northwestern Pacific was mainly transported toward Henan Province by confluent southeasterlies on the northern side of a strong typhoon In-Fa(2021),with the convergent southerlies associated with a weaker typhoon Cempaka(2021)concurrently transporting moisture northward from South China Sea,supporting the rainstorm.In the upper troposphere,two equatorward-intruding potential vorticity(PV)streamers within the planetary-scale wave train were located over northern Henan Province,forming significant divergent flow aloft to induce stronger ascending motion locally.Moreover,the converged moist air was also blocked by the mountains in western Henan Province and forced to rise so that a deep meso-β-scale convective vortex(MβCV)was induced over the west of Zhengzhou City.The PV budget analyses demonstrate that the MβCV development was attributed to the positive feedback between the rainfall-related diabatic heating and high-PV under the strong upward PV advection during the Zhengzhou 7.20 rainstorm.Importantly,the MβCV was forced by upper-level larger-scale westerlies becoming eastward-sloping,which allowed the mixtures of abundant raindrops and hydrometeors to ascend slantwise and accumulate just over Zhengzhou City,resulting in the record-breaking hourly rainfall locally. | Guanshun ZHANG Jiangyu MAO Wei HUA Xiaofei WU Ruizao SUN Ziyu YAN Yimin LIU Guoxiong WU | 2023 | Advances in Atmospheric Sciences2023,40,3: | 1 |
| 3 | A Fuzzy Decision Based WSN Localization Algorithm for Wise Healthcare显示文摘Wise healthcare is a typical application of wireless sensor network(WSN), which uses sensors to monitor the physiological state of nursing targets and locate their position in case of an emergency situation. The location of targets need to be determined and reported to the control center,and this leads to the localization problem. While localization in healthcare field demands high accuracy and regional adaptability, the information processing mechanism of human thinking has been introduced,which includes knowledge accumulation, knowledge fusion and knowledge expansion. Furthermore, a fuzzy decision based localization approach is proposed. Received signal strength(RSS) at references points are obtained and processed as position relationship indicators, using fuzzy set theory in the knowledge accumulation stage; after that, optimize degree of membership corresponding to each anchor nodes in different environments during knowledge fusion; the matching degree of reference points is further calculated and sorted in decision-making, and the coordinates of several points with the highest matching degree are utilized to estimate the location of unknown nodes while knowledge expansion. Simulation results show that the proposed algorithm get better accuracy performance compared to several traditional algorithms under different typical occasions. | Jiangyu Yan Ran Qiao Liangrui Tang Chenxi Zheng Bing Fan | 2019 | China Communications2019,16,4: | 1 |
| 4 | Preparation of Polyaniline/Metal Composite Nanospheres by in situ Microemulsiom Polymerization显示文摘 | Li Liang Yan Guoping Wu Jiangyu | 2008 | J Colloid Interface Sci2008,326,1: | 1 |
| 5 | A universal design for triggering the precise micro-structure reconstruction through in-situ electro-regulating to boost the pseudocapacitance of MnO_(2)显示文摘Developing a precise controllable strategy for modulating the micro-morphology,atom coordination environment,and electronic structure of electrode materials is crucial for the performance in the field of energy storage,yet still a tremendous challenge.Herein,a facile and universal in-situ electrochemical self-optimization design,electro-regulating,is designed to controllably produce electrode materials with abundant defects.Through detailed characterization studies,the microstructure of MnO_(2) is reconstructed after electro-regulating,which exhibits a structure of small fragments with numerous holes due to the partial self-dissolution of acidic oxides under an alkaline operating environment.Furthermore,the electro-regulating strategy not only presents the formation steps of numerous holes but is also accompanies by a number of O vacancies generation process due to the activation of an external electric field.This study provides a new inspiration for reasonably designing advanced functional electrode materials for various electrochemical applications and beyond. | Lijin Yan Jiangyu Hao Baibai Liu Xuefeng Zou Qibin Wu Jin Hou Jizhou Duan Shicheng Wei Yang Zhou Bin Xiang Baorong Hou | 2022 | Journal of Energy Chemistry2022,31,11: | 0 |
| 6 | In-situ cation-inserted MnO_(2) with selective accelerated intercalation of individual H^(+) or Zn^(2+) ions in aqueous zinc ion batteries显示文摘The recognized energy storage mechanism of neutral aqueous zinc-manganese batteries is the co-insertion/extrusion of H^(+) and Zn^(2+) ions.However,modulating the kinetics of a single H^(+) or Zn^(2+) ion is scarce,which can provide meaningful insights into the energy storage mechanism of Zn ion batteries.Herein,a distinctive doubly electric field in-situ induced cationic anchoring of two-dimensional layered MnO_(2) is successfully constructed to modulate the insertion/extrusion of a single H^(+) or Zn^(2+) ion.As a result,regulating the intercalation of different metal ions can precisely achieve the accelerated induction for the individual H^(+) or Zn^(2+) ions intercalation/deintercalation.Moreover,the introduction of metal ions stabilizes the lattice distortion and alleviates the irreparable structural collapse,leading to an increase in the H^(+)/Zn^(2+) storage sites,efficiently diminishing the stagnation of the ordered structure and creating the more open channels,which is conducive to facilitating the diffusion of ions.This work delivers some innovative insights into pre-embedding strategies,and also serves as a precious reference for the cathode development of advanced aqueous batteries. | Lijin Yan Baibai Liu Jiangyu Hao Yuying Han Chong Zhu Fuliang Liu Xuefeng Zou Yang Zhou Bin Xiang | 2023 | Journal of Energy Chemistry2023,,7: | 0 |
| 7 | Halogen chlorine triggered oxygen vacancy-rich Ni(OH)_(2) with enhanced reaction kinetics for pseudocapacitive energy storage显示文摘Two-dimensional (2D)Ni(OH)_(2) nanosheets can theoretically expose their active sites of 100%.Whereas,their intrinsic easy accumulation and low conductivity lead to weak and unsustainable reaction kinetics.Herein,we propose a novel halogen chlorine-triggered electrochemical etching strategy to controllably manage the reaction kinetics of 2D Ni(OH)_(2) nanosheets(EE/Cl-Ni(OH)_(2)).It is found that halogen chlorine doping can adjust the interlamellar spacing flexibly and promote the lattice oxygen activation to achieve controlled construction of superficial oxygen defects at the adjustable voltage.The optimal EE/Cl-Ni(OH)_(2) electrode exhibits a high rate capability and excellent specific capacity of 206.9 mA h g^(-1) at 1 A g^(-1) in a three-electrode system,which is more than twice as high as the pristine Ni(OH)_(2).Furthermore,EE/Cl-Ni(OH)_(2) cathode and FeOOH@rGO anode are employed for developing an aqueous Ni-Fe battery with an excellent energy density of 83 W h kg^(-1),a high power density of 17051 W kg^(-1),and robust durability over 20,000 cycles.This strategy exploits a fresh channel for the ingenious fabrication of highefficiency and stable nickel-based deficiency materials for energy storage. | Jiangyu Hao Lijin Yan Liang Luo Qiaohui Liu Youcun Bai Yuying Han Yang Zhou Xuefeng Zou Bin Xiang | 2023 | Journal of Energy Chemistry2023,,7: | 0 |
| 8 | Fungal Translocation Marker in People Living with HIV Needing Treatment for Onychomycosis: A Protocol for the Prospective Pilot Study显示文摘Increased microbial translocation and chronic immune activation are two critical problems for people living with HIV(PLWH)in the antiretroviral therapy(ART)era.Compared with numerous studies on bacterial microbiomic communities,there are only a limited number of studies focusing on fungal microbiomic composition and products in PLWH.This study protocol is used to evaluate the changes in bacterial and fungal microbiome populations induced by terbinafine treatment,which is an antifungal agent widely used amongst PLWH.Twenty-two PLWH on a stable ART regimen for more than six months,who require treatment for onychomycosis,will be recruited.The participants will be followed-up for a 12-week treatment period(oral terbinafine 250mg daily)and another 12-weeks of terbinafine discontinuation.Plasma and fecal samples will be collected before and after terbinafine treatment,and for 12weeks after the discontinuation of terbinafine.Plasma gut injury and microbial translocation biomarker assays,in addition to testing for gut microbiome composition,will be undertaken.With this pilot study,we will perform formal sample size calculations and test study feasibility for a possible full-scale study. | Yaling Chen Jing Ouyang Stéphane Isnard Cecilia T.Costiniuk Jiangyu Yan Xin Zhou Jean-Pierre Routy Yaokai Chen | 2022 | Infectious Diseases & Immunity2022,2,2: | 0 |
| 9 | Magnetic field induced synthesis of (Ni, Zn)Fe_(2)O_(4) spinel nanorod for enhanced alkaline hydrogen evolution reaction显示文摘Recently, the introduction of external fields (light, thermal, magnetism, etc.) during electrocatalysis reactions gradually becomes a new strategy to modulate the catalytic activities. In this work, an external magnetic field was innovatively employed for the synthesis progress of (Ni, Zn)Fe_(2)O_(4) spinel oxide (M-(Ni, Zn)Fe_(2)O_(4)). Results indicated the magnetic field (≤250 mT) would affect the morphology of catalyst due to the existing Fe ions, inducing the M-(Ni, Zn)Fe_(2)O_(4) nanosphere particles to be uniform and coral-like nanorods. In addition, the electronic structure of the catalyst was regulated by the valence state of Fe, changing the bonding of metal to oxygen atoms in different spinel sites. The results manifested that the M-(Ni, Zn)Fe_(2)O_(4) requires a lower overpotential of only 67 mV to deliver 10 mA cm−2 for hydrogen evolution reaction (HER) in alkaline electrolyte. Moreover, M-(Ni, Zn)Fe_(2)O_(4) respectively as the anode and cathode electrode for the overall water splitting, the catalysis system requires a cell voltage of only 1.76 V to gain a current density of 50 mA cm−2, combining with an excellent discharging stability after 10 h. This work provides a facile synthesis strategy toward the design of efficient non-noble metal catalysts for alkaline HER and overall water splitting. | Mingkun Xia Yan zhang Jiangyue Xiao Peng Zhao Zhongjun Hou Fanglin Du Dawei Chen Shuo Dou | 2023 | Progress in Natural Science:Materials International2023,33,2: | 0 |
| 10 | Development of emergency water quality standard for Cr^(6+) and Hg^(2+) in Liao River basin显示文摘The acute toxicity data of Cr6 +and Hg2 +to the aquatic organisms in Liao River basin was collected and screened. Calculated results of criteria values using popular species sensitivity distribution(SSD) methods were evaluated through data analysis. The comprehensive methodology of emergency water quality standards(EWQSs) was established on the basis of the SSD method of Australia and New Zealand according to the evaluation results. The affected fractions of the aquatic organisms were set to be 5 %,15 %,30 % and 50 %,corresponding to the risk grades of Ⅰ,Ⅱ,Ⅲ and Ⅳ,and four-grade EWQSs,respectively. The EWQSs for Cr6 +and Hg2 +in the Liao River were derived and the corresponding risk indicators were also proposed. The results showed that the four-grade EWQSs for Cr6+were 2.85 μg/L,21.0 μg/L,161 μg/L and 797 μg/L,respectively,and the risk indicators were daphnia(grade Ⅱ),shrimp(grade Ⅲ),and the bighead fish or tadpole(grade Ⅳ). The four-grade EWQSs for Hg2 +were 0.59 μg/L,2.32 μg/L,6.25 μg/L and 15.6 μg/L,respectively,and the risk indicators were crucian carp or daphnia(grade Ⅱ),shrimp(grade Ⅲ),and worm or crab(grade Ⅳ). The results provided valuable information for the risk analysis of sudden ambient water environmental pollution accident. | Yan Zhenguang Zheng Xin Ye Jing Wang Xiaonan Wu Jiangyue Liu Zhengtao Meng Wei | 2014 | Engineering Sciences2014,12,2: | 0 |
| 11 | Fabrication, bacteriostasis and osteointegration properties researches of the additively-manufactured porous tantalum scaffolds loading vancomycin显示文摘Infected bone defects(IBDs)remains a challenging problem for orthopedists.Clinically,routine management for IBDs has two stages:debridement and systematic antibiotics administration to control infection,and secondary grafting to repair bone defects.Whereas the efficacy is not satisfactory,because the overuse of antibiotics may lead to systemic toxicity,and the emergence of drug-resistant bacteria,as well as the secondary surgery would cause additional trauma and economic burden to the patients.Therefore,it is imperative to develop a novel scaffold for one-stage repair of IBDs.In this study,vancomycin(Van)was encapsulated into poly(lactic co-glycolic acid)(PLGA)microspheres through the double emulsion method,which were then loaded into the additively-manufactured porous tantalum(AM-Ta)through gelatin methacryloyl(GelMA)hydrogel to produce the composite Ta/GelMA hydrogel(Gel)/PLGA/vancomycin(Van)scaffolds for repairing IBDs.Physiochemical characterization of the newly-developed scaffold indicated that the releasing duration of Van was over 2 weeks.Biological experiments indicated good biocompatibility of the composite scaffold,as well as bacteriostasis and osteointegration properties,which showed great potential for clinical application.The construction of this novel scaffold would provide new sight into the development of orthopaedic implants,shedding a novel light on the treatment of IBDs. | Hu Qian Ting Lei Long Hua Yu Zhang Dongyu Wang Jiangyu Nan Wenbin Liu Yan Sun Yihe Hu Pengfei Lei | 2023 | Bioactive Materials2023,,6: | 0 |
| 12 | Effect of substituents on self-assembling behaviors and charge transport properties of nonplanar heterocycloarenes显示文摘(Hetero)cycloarenes possessing rigid molecular skeletons and largeπ-systems are the potential active materials in various electronic devices.However,the development of their organic electronics still lags far behind the synthetic chemistry.Herein,in order to bridge this gap,we reported the study of organic semiconductor materials based on heterocycloarenes in detail about the relationship between structure,properties,and device performance.Three varying straight alkyl chain substituted butterflyshaped heterocycloarenes PTZs were strategically synthesized.Compared with bulky aryl(mesityl)substituted PTZ1,PTZs show additional self-assembly behavior.Concentration-dependent^(1)H NMR spectra indicated that the self-assembly behavior can be modulated by the alkyl chain length.Medium alkyl chain length substituted heterocycloarene PTZ-C6 showed the strongest association constants of 490 M^(–1)in solution,and a similar trend was also observed in solid state by thin film absorption spectra.Remarkably,despite the nonplanar conjugated backbones,solution-processing thin film transistor based on PTZ-C6 exhibits hole mobility up to 0.13 cm^(2)V^(–1)s^(–1)and considerable current on/off ratio of 10^(5).Our study demonstrates that substituent engineering of heterocycloarenes is a powerful strategy for modulating self-assembling structures and promoting transistor device performance. | Jiangyu Zhu Wenhao Li Rong Zhang Yan Zhao Xuefeng Lu Yunqi Liu | 2023 | Science China Chemistry2023,66,10: | 0 |
| 13 | Biomolecule@COF:Natural-artificial hybrid microcapsules for controllable biocatalysis显示文摘The assembly of biomacromole particles with artificial solid matrixes to fabricate hybrid composites has been demonstrated as an efficient strategy to promote both components'applications.Elaborating matrixes as well as appropriate assembly method is essential for optimal performances of the obtained natural-artificial composites.Herein,we fabricated the Cyt c@COF-42-B microcapsule through a sacrificial templating method and researched their adjustable biocatalysis by precisely adjusting the microenvironments of these assembled enzyme@COF particles.As a result,the hydrophobicity and mass transfer of the COF microcapsule can be controlled by modifying the different amounts of PEG moieties,thus improving the composite's bioactivity.We found that compared with pristine Cyt c@COF-42-B without PEG,the Cyt c@COF-42-B-PEG exhibited a~2.2 times higher activity.This study provides a significant step toward designing customizable functional natural-artificial composites for enhanced biomacromolecule's activity. | Shan Qiao Mingmin Li Jiangyue Yu Sainan Zhang Dong Yan Zhenjie Zhang Yao Chen | 2022 | Particuology2022,20,5: | 0 |
| 14 | A Reactive Oxygen Species-Tyrosinase Cascade-Activated Prodrug for Selectively Suppressing Melanoma显示文摘“Off-target effect”is one of the obstacles for targeted prodrugs in chemotherapy.To circumvent this issue,herein we propose a dual biomarker cascadeactivated prodrug strategy based on high levels of reactive oxygen species(ROS)and tyrosinase(TYR)in melanoma cells.A representative prodrug,Coumarin-Quinazolinone-phenylBoronic acid pinacol ester(CQB),was prepared.The prodrug contained Coumarin-Quinazolinone(CQ)as mitochondria targeting and monitoring moiety and phenylboronic acid pinacol ester as a cascade-activated prowarhead.After activation by the endogenous ROS and subsequent TYR in melanoma cells,CQB can be converted to the final active reagent Coumarin-Quinazolinone-o-Quinone(CQQ)that contains o-quinone group as the reactive species.CQQ may interact with cellular nucleophiles to exert its genotoxic effect and disrupt the cellular redox balance.This enables CQB to selectively suppress melanoma.CQB accumulates in the mitochondria and causes mitochondrial dysfunction via affecting mitochondrial DNA integrity.This cascade-activated prodrug may provide a precise strategy for melanoma theranostics. | Guorui Li Yi Yang Yaya Zhang Peiling Huang Jiangyu Yan Zhibin Song Quan Yuan Jing Huang | 2022 | CCS Chemistry2022,4,5: | 0 |
| 15 | Dual Diomarkers Triggered Prodrugs for Precise Treatment of Melanoma:Design,Synthesis and Activities显示文摘Targeted prodrug strategy,which utilizes the endogenous biomarkers in cancer cells as activators to release the active drug,has been well established either in the fundamental research or the clinical treatment.However,many prodrugs suffer from safety concern due to“off-target activation”.Dual or multiple biomarkers triggered prodrug may provide an effective strategy to overcoming the“off-target effect”.Melanoma cells have both high levels of reactive oxygen species(ROS)and tyrosinase(TYR),which makes them significantly different from other tumor cells and normal cells.Here we reported a series of quinazolinone-aryl boronic acid/ester-based prodrugs,which can be activated by the cascade of ROS and TYR and selectively kill melanoma cells.The structure-activity relationship(SAR)analysis revealed that mitochondria-targeting property was vital for their cytotoxicity and the dual activated effector played a significant role in their selectivity towards melanoma cells.Among these candidates,compound 4b showed the highest toxicity to B16,leading to an imbalance of the redox system in melanoma cells,causing mitochondrial DNA damage,and then promoting melanoma cells death. | RUAN Yawen HUANG Peiling YAN Jiangyu LI Guorui HUANG Jing | 2022 | Chemical Research in Chinese Universities2022,38,4: | 0 |